<?php
echo md5("nihao");
echo "\n";
echo md5("nihao123");
echo "\n";
$var_nihao = "md5";
echo $var_nihao("nihao123");
echo "\n";
echo md5("n~!@#$i#h#ao1");
echo "\n";
echo md5("\n~!\@#\$i#h#,.<>ao?\*&^1");
$var_md5 = "\n~!\@#\$i#h#,.<>ao?\*&^1";
echo "\n";
echo md5("$var_md5");

?>

